1. Department of General Medicine, Institute of Medical Sciences; Banaras Hindu University; Varanasi India
2. Department of Pharmacology (previously Division of Geriatrics, Department of General Medicine), Institute of Medical Sciences; Banaras Hindu University; Varanasi India
3. Department of Radiodiagnosis & Imaging, Institute of Medical Sciences; Banaras Hindu University; Varanasi India
4. Division of Geriatrics, Department of General Medicine, Institute of Medical Sciences; Banaras Hindu University; Varanasi India